<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<nav class="navbar navbar-inverse navbar-fixed-top transition main-nav">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="index.html">
<img src="img/effective-green.png" alt="logo image" class="transition img-responsive">
</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li><a class="page-scroll" href="#home">Home</a></li>
<li><a class="page-scroll" href="#about">About</a></li>
<li><a class="page-scroll" href="#services">Services</a></li>
<li><a class="page-scroll" href="#projects">Projects</a></li>
<li><a class="page-scroll" href="#clients">Clients</a></li>
<li><a class="page-scroll" href="#contact">Contact</a></li>
</ul>
</div>
</div>
</nav>
<div id="home" class="banner" style="background-image: url('http://via.placeholder.com/1349x640');">
<div class="overlay"></div>
<div class="banner-content">